Base of a lamp



FIG. 1 is a perspective view of a base of a lamp showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a perspective thereof with an adjustable lamp shown in brokenlines for illustrative purposes only.

The ornamental design for a base of a lamp, as shown and described.